underpants

Meanings

1. 1
   noun

   Underwear covering the genitalia and often buttocks, usually going no higher than the navel.

   The Italian fashion of wearing red underpants on December 31 is becoming popular, reputedly to guarantee luck for the new year.

2. 2
   noun

   an undergarment that covers the body from the waist no further than to the thighs

Etymology

From under- + pants.